Supplying data to a double buffering process
US6522335B2 · kind B2 · utility
9Cited by
6References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1999 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | May 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/399
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data is supplied to a double buffering process. New data is supplied to a background buffer for a displayed item. A condition is identified to the effect that the item in a foreground buffer is invalid. On the previous cycle, a similar process may have been performed such that the background buffer contains invalid items. Before swapping the roles of the buffers, any invalid items in the background buffer are validated. In this way, all item transitions appear without artefacts without adding a significant overhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.